If a compound has a molar absorptivity of 200 L/(mol·cm) and a concentration of

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Question: If a compound has a molar absorptivity of 200 L/(mol·cm) and a concentration of 0.01 mol/L, what is the absorbance at a path length of 1 cm?

Options:

0.2
2
20
0.02

Correct Answer: 0.2

Solution:

Using Beer-Lambert Law (A = εlc), A = 200 L/(mol·cm) * 0.01 mol/L * 1 cm = 2.

If a compound has a molar absorptivity of 200 L/(mol·cm) and a concentration of

Practice Questions

If a compound has a molar absorptivity of 200 L/(mol·cm) and a concentration of 0.01 mol/L, what is the absorbance at a path length of 1 cm?

0.2
2
20
0.02

Questions & Step-by-Step Solutions

If a compound has a molar absorptivity of 200 L/(mol·cm) and a concentration of 0.01 mol/L, what is the absorbance at a path length of 1 cm?

Step 1: Identify the values given in the problem. The molar absorptivity (ε) is 200 L/(mol·cm), the concentration (c) is 0.01 mol/L, and the path length (l) is 1 cm.
Step 2: Write down the Beer-Lambert Law formula: A = εlc.
Step 3: Substitute the values into the formula: A = 200 L/(mol·cm) * 0.01 mol/L * 1 cm.
Step 4: Calculate the product: 200 * 0.01 * 1 = 2.
Step 5: Conclude that the absorbance (A) is 2.

Beer-Lambert Law – The Beer-Lambert Law relates the absorbance of a solution to its concentration, path length, and molar absorptivity.

If a compound has a molar absorptivity of 200 L/(mol·cm) and a concentration of

What’s inside this PDF?

If a compound has a molar absorptivity of 200 L/(mol·cm) and a concentration of

Practice Questions

Questions & Step-by-Step Solutions

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